Hallo Sarma,I appreciate very much what you said and I'm going to look towards this kind of study. I also appreciate the great dignity and humility that you use in interfacing with others, these are the features of simple, true men.Please, could you explain me what did you mean when you said "front end" and 1Kpf related to that?Maybe you were suggesting to put a 1Kpf capacitor to the collector side of that filter to obtain a better performance and also the optimum(50 ohm) impedance on the opposite side?Thanks again and see soon.73 Ciro IK6AIZ.

Hi SaraHow're you? Today I reviewed my notes and wanted to say hallo to you.Have you had more experiences with this vfo and network adaptations?Thank you again for your concern about my issues.73 de IK6AIZ Ciro.

IK6AIZ wrote:Hi SaraHow're you? Today I reviewed my notes and wanted to say hallo to you.Have you had more experiences with this vfo and network adaptations?Thank you again for your concern about my issues.73 de IK6AIZ Ciro.

sorry Ciro for a late reply

i had been trying for stability and with normal LC versions, even with styrofelx or npo caps, the stability is far out of normal reach. appears huf-puff or synthesized versions like dds or si5351 are better these days. Only issue , they are software dependent.